The Kluson® Revolution G-Mount 19:1 high ratio tuning machines offer the traditional Kluson® footprint and a newly designed sealed die-cast, one-piece housing. High gear ratio guarantees silky smooth operation, fine tuning stability with no backlash. These state of the art tuning machines are designed to directly retrofit die-cast tuning machines that have a hex head (collared) bushing and a traditional Kluson® two-screw mounting pattern. Uses the common modern 25/64 in. (10mm) peghole. The G-Mount pattern makes these a great drop-in replacement for the modern “Gibson® Deluxe” collared tuning machines found on many models. No modification or unused holes!

The Kluson® Revolution G-Mount 19:1 high ratio tuning machines offer the traditional Kluson® footprint and a newly designed sealed die-cast, one-piece housing. High gear ratio guarantees silky smooth operation, fine tuning stability with no backlash. These state of the art tuning machines are designed to directly retrofit die-cast tuning machines that have a hex head (collared) bushing and a traditional Kluson® two-screw mounting pattern. Uses the common modern 25/64 in. (10mm) peghole. The G-Mount pattern makes these a great drop-in replacement for the modern “Gibson® Deluxe” collared tuning machines found on many models. No modification or unused holes!

The newest addition to the Grover family, these locking machine heads utilize the famous 18:1 Rotomatic® design with a "thumb screw" mechanism which locks the string into place. Insert the string through the post hole, wrap around once, then lock by tightening with the thumb screw. Perfect replacement for the most standard machine heads.